NOAA-20 VIIRS Global Mapped Diffuse Attenuation Coefficient for Downwelling Irradiance (KD) - Near Real Time (NRT) Data, version R2022.0
Data and Resources
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View this dataset's algorithm theoretical...HTML
NASA Ocean Color Web - Algorithm Description Documentation
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View this dataset's processing historyHTML
NASA Ocean Color Web - Processing History
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This dataset's landing pageHTML
VIIRS-NOAA-20 L3M Diffuse Attenuation Coefficient for Downwelling Irradiance...
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Use OPeNDAP to access the dataset's dataHTML
OB.DAAC OPeNDAP Site for NOAA-20 VIIRS Standard Mapped Image (SMI) Product
| Field | Value |
|---|---|
| accessLevel | public |
| bureauCode | {026:00} |
| catalog_@context | https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld |
| catalog_conformsTo | https://project-open-data.cio.gov/v1.1/schema |
| catalog_describedBy | https://project-open-data.cio.gov/v1.1/schema/catalog.json |
| identifier | C2340494576-OB_DAAC |
| issued | 2022-09-14 |
| landingPage | https://cmr.earthdata.nasa.gov:443/search/concepts/C2340494576-OB_DAAC.html |
| language | {en-US} |
| metadata_type | geospatial |
| modified | 2025-07-17 |
| old-spatial | -180.0 -90.0 180.0 90.0 |
| programCode | {026:001} |
| publisher | NASA/GSFC/SED/ESD/GCDC/OB.DAAC |
| resource-type | Dataset |
| source_datajson_identifier | true |
| source_hash | dcf7828c0dab79118f2305afbbd3c0990ae11c4ab4932cec8dc2233138c98c77 |
| source_schema_version | 1.1 |
| temporal | 2017-11-29T00:00:00Z/2023-02-28T00:00:00Z |
| theme | {geospatial} |
| Groups |
|
| Tags |
|
| isopen | False |
| license_id | notspecified |
| license_title | License not specified |
| maintainer | undefined |
| maintainer_email | sdps@oceancolor.gsfc.nasa.gov |
| metadata_created | 2025-09-23T15:56:12.033751 |
| metadata_modified | 2025-09-23T15:56:12.033759 |
| notes | The Ocean Biology DAAC produces near real-time (quicklook) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Quicklook products provide a snapshot of the data during a short time period within a single orbit. |
| num_resources | 4 |
| num_tags | 11 |
| title | NOAA-20 VIIRS Global Mapped Diffuse Attenuation Coefficient for Downwelling Irradiance (KD) - Near Real Time (NRT) Data, version R2022.0 |